To share a 3D model with compatibility, export it to widely supported formats like FBX, OBJ, or GLB—these work across most 3D software (e.g., Blender, Maya) and web platforms.
FBX preserves animations and textures, OBJ is lightweight for basic geometry, and GLB is ideal for web sharing (it embeds all assets in one file). Avoid proprietary formats (e.g., SketchUp’s SKP, 3ds Max’s MAX) unless the recipient uses the same tool, as these limit access.
For easy web viewing, embed GLB models via tools like Three.js or use platforms like Sketchfab—this lets others view your model without installing 3D software.